surmise

Synonyms: assumption attempt conjecture deduction guesstimate guesswork hunch hypothesis idea inference notion opinion possibility presumption sneaking suspicion speculation supposition suspicion theory thought

Antonyms: calculation knowledge measurement

Synonyms: assume conclude conjecture consider deduce fancy guess guesstimate hazard a guess hypothesize imagine infer opine presume pretend regard risk assuming speculate suppose suspect take a shot take a stab theorize think venture a guess

Antonyms: question wonder